Taint is a slang term used to refer to the perineum (the region of the human body between the testicles or vulva and the anus). It is a portmanteau of "it ain't." This term has no basis in medical terminology and is most often considered lewd and mildly obscene.
"Last night, you mom tongued my taint..."
by high5 September 07, 2008
The demilitarized zone between a women's snapper and asshole. Highly effective in keeping your tongue in the right hole when its dark.
David was a little drunk and kind of sloppy when he went down on her. Fortunately before he could get too low, he knew he had hit her taint and with alarm, moved his face north quickly. He had a sense that she was a little disappointed.
by GoldbergDLW November 14, 2007